LT1034CS8-1.2

LT1034-1.2/LT1034-2.5 Micropower Dual Reference FEATURES s s s s s DESCRIPTIO Guaranteed 20 ppm/°C Drift Guaranteed 40 ppm/°C Drift (SO-8 Package) 20µA to 20mA Operation (1.2V) Dynamic Impedance: 1Ω 7V, 100µA Reference APPLICATIO S s s s Portable Meters Precision Regulators Calibrators The LT ® 1034 is a micropower, precision 1.2V/2.5 reference combined with a 7V auxiliary reference. The 1.2V/2.5V reference is a trimmed, thin-film, band-gap, voltage reference with 1% initial tolerance and guaranteed 20ppm/°C temperature drift. Operating on only 20µA, the LT1034 offers guaranteed drift, low temperature cycling hysteresis and good long-term stability. The low dynamic impedance makes the LT1034 easy to use from unregulated supplies. The 7V reference is a subsurface zener device for less demanding applications. The LT1034 reference can be used as a high performance upgrade of the LM385 or LT1004, where guaranteed temperature drift is desired. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO 15V Temperature Drift LT1034CS8-1.2 2.5 2.0 REVERSE VOLTAGE CHANGE (mV) 50k 500k 1.2V OR 2.5V OUTPUT 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 7V OUTPUT 7V 1.225V OR 2.500V LT1034 • TA01 –2.5 –50 –25 U 50 25 0 75 TEMPERATURE (°C) 100 125 LT1034 • TPC02 U U 1034fe 1 LT1034-1.2/LT1034-2.5 ABSOLUTE MAXIMUM RATINGS Operating Current ................................................. 20mA Forward Current (Note 2) ..................................... 20mA Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C PACKAGE/ORDER INFORMATION BOTTOM VIEW 1.2V 7V ORDER PART NUMBER LT1034BCH-1.2 LT1034BCH-2.5 LT1034BMH-1.2 LT1034BMH-2.5 LT1034CH-1.2 LT1034CH-2.5 LT1034MH-1.2 LT1034MH-2.5 H PACKAGE 3-LEAD TO-46 METAL CAN TJMAX = 150°C, θJA = 440°C/ W, θJC = 80°C/ W OBSOLETE PACKAGE Consider the Z Package for Alternate Source BOTTOM VIEW 1.2V 7V ORDER PART NUMBER LT1034BCZ-1.2 LT1034BCZ-2.5 LT1034BIZ-1.2 LT1034BIZ-2.5 LT1034CZ-1.2 LT1034CZ-2.5 LT1034IZ-1.2 LT1034IZ-2.5 Z PACKAGE 3-LEAD TO-92 PLASTIC TJMAX = 100°C, θJA = 160°C/ W Consult LTC Marketing for parts specified with wider operating temperature ranges. 2 U U W WW U W (Note 1) Operating Temperature Commercial ............................................. 0° to 70°C Industrial .......................................... – 40°C to 85°C Military (OBSOLETE) ................. – 55°C to 125°C ORDER PART NUMBER TOP VIEW NC 1 NC 2 NC 3 GND 4 8 7 6 5 2.5V NC 2.5V 7V LT1034CS8-1.2 LT1034CS8-2.5 LT1034IS8-1.2 LT1034IS8-2.5 PART MARKING 3401 3402 1034I12 34I02 S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 175°C, θJA = 150°C/ W 1034fe LT1034-1.2/LT1034-2.5 The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER Reverse Breakdown Voltage Reverse Breakdown Change with Current CONDITIONS IR = 100µA q ELECTRICAL CHARACTERISTICS (Note 4) q 2mA ≤ IR ≤ 20mA q Minimum Operating Current Temperature Coefficient Reverse Dynamic Impedance (Note 3) Low Frequency Noise Long-Term Stability q IR = 100µA IR = 100µA LT1034B LT1034 q q IR = 100µA, 0.1Hz ≤ F ≤ 10Hz IR = 100µA q LT1034-1.2 MIN TYP MAX 1.210 1.225 1.240 1.205 1.225 1.245 0.5 2.0 1.0 4.0 4.0 8.0 6.0 15.0 10 20 10 20 20 40 0.25 1.0 0.50 2.0 4 20 MIN 2.46 2.43 LT1034-2.5 TYP MAX 2.5 2.54 2.5 2.57 1.0 3.0 1.5 6.0 6.0 16.0 10.0 20.0 15 30 10 20 20 40 0.5 1.5 1.0 2.5 6 20 UNITS V V mV mV mV mV µA ppm/°C ppm/°C Ω Ω µVP-P ppm/√khrs The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. 7V Reference. PARAMETER Reverse Breakdown Voltage Reverse Breakdown Change with Current CONDITIONS IR = 100µA q MIN 6.80 6.75 Temperature Coefficient Long-Term Stability 100µA ≤ IR ≤ 1mA 100µA ≤ IR ≤ 1mA 1mA ≤ IR ≤ 20mA 1mA ≤ IR ≤ 20mA IR = 100µA IR = 100µA q q q TYP 7.0 7.0 90 100 160 200 40 20 MAX 7.3 7.4 140 190 250 350 UNITS V V mV mV mV mV ppm/°C ppm/√khrs Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Forward biasing either diode will affect the operation of the other diode. Note 3: This parameter guaranteed by “reverse breakdown change with current” test. Note 4: For the LT1034-1.2: 20µA ≤ IR ≤ 2mA. For the LT1034-2.5: 30µA ≤ IR ≤ 2mA. 1034fe 3 LT1034-1.2/LT1034-2.5 TYPICAL PERFORMANCE CHARACTERISTICS Reverse Voltage Change 1.2V 8 TA = – 55°C TO 125°C REVERSE VOLTAGE CHANGE (mV) 6 1.2V 4 REVERSE VOLTAGE CHANGE(V) 2µV/DIV 2 0 –2 0.01 0.1 1 10 REVERSE CURRENT (mA) Reverse Dynamic Impedance 1.2V 100 REVERSE DYNAMIC IMPEDANCE (Ω) 60 REVERSE DYNAMIC IMPEDANCE (Ω) 50 40 30 20 10 0 0.01 1.2V 10 REVERSE DYNAMIC IMPEDANCE (Ω) TA = 25°C f = 25Hz 1 0.1 0.01 0.1 1 10 REVERSE CURRENT (mA) 4 UW LT1034 • TPC01 LT1034 • TPC04 Reverse Voltage Change 7V 0.4 TA = 25°C 0.3 7V 0.2 11 10 8 6 4 2 0 –2 –4 –6 0 –8 –10 100 –0.1 0.1 1 10 100 LT1034 • TPC02 0.1Hz to 10Hz Noise 1.2V 0.1 –11 0 1 2 3 4 5 REVERSE CURRENT (mA) 67 1s/DIV 8 9 10 11 12 LT1034 • TPC03 Reverse Dynamic Impedance 2.5V 100 IZ = 100µA Reverse Dynamic Impedance 7V TA = 25°C IZ = 100µA 10 1.2V 1 100 0.1 1 FREQUENCY (kHz) 10 100 LT1034 • TPC05 0.1 10 100 1k 10k FREQUENCY (Hz) 100k LT1034 • TPC06 1034fe LT1034-1.2/LT1034-2.5 TYPICAL PERFORMANCE CHARACTERISTICS Reverse Characteristics 1.2V 16 TA = – 55°C TO 125°C VREF = 1.2V REVERSE CURRENT (µA) REVERSE CURRENT (mA) 12 10 REVERSE CURRENT (µA) 8 4 0 0 0.8 0.4 1.2 REVERSE VOLTAGE (V) Forward Characteristics 1.2 TA = 25°C FORWARD VOLTAGE (V) VOLTAGE (V) VOLTAGE (V) 0.8 0.4 0 0.01 0.1 1 10 FORWARD CURRENT (mA) LT1034 • TPC10 UW LT1034 • TPC07 Reverse Characteristics 2.5V 100 100 Reverse Characteristics 7V TA = – 55°C TO 125°C VREF = 7V 80 60 1 40 0.1 20 1.6 0.01 2.490 2.495 2.500 2.505 2.510 0 0 1 2 REVERSE VOLTAGE (V) LT1034 • TPC02 345678 REVERSE VOLTAGE (V) 9 10 LT1034 • TPC09 Response Time 8 6 82k 4 2 0 VIN VOUT 7V 1.0 Response Time OUTPUT 1.5 OUTPUT 36k VIN 0.5 0 VOUT 1.2V 15 0 100 INPUT 5 0 INPUT 0 40 20 TIME (µs) 60 80 0 200 100 TIME (µs) 300 400 LT1180A • TPC11 LT1180A • TPC12 1034fe 5 LT1034-1.2/LT1034-2.5 PACKAGE DESCRIPTIO 0.209 – 0.219 (5.309 – 5.537) 0.178 – 0.195 (4.521 – 4.953) 0.500 (12.700) MIN * REFERENCE PLANE 0.016 – 0.021** (0.406 – 0.533) DIA 0.010 – 0.020 × 45° (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254) 0°– 8° TYP 0.014 – 0.019 (0.355 – 0.483) TYP *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 0.016 – 0.050 (0.406 – 1.270) 6 U H Package 8-Lead TO-5 Metal Can (.200 Inch PCD) (Reference LTC DWG # 05-08-1320) 0.085 – 0.105 (2.159 – 2.667) 0.050 (1.270) TYP 0.100 (2.540) TYP PIN 1 FOR 3-LEAD PACKAGE ONLY 0.025 (0.635) MAX 45° 0.036 – 0.046 (0.914 – 1.168) 0.028 – 0.048 (0.711 – 1.219) H02/03(TO-46) 1098 0.050 (1.270) TYP *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 – 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) OBSOLETE PACKAGE S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) 0.189 – 0.197* (4.801 – 5.004) 8 7 6 5 0.228 – 0.244 (5.791 – 6.197) 0.150 – 0.157** (3.810 – 3.988) SO8 1298 1 2 3 4 0.053 – 0.069 (1.346 – 1.752) 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) BSC 1034fe LT1034-1.2/LT1034-2.5 PACKAGE DESCRIPTIO 0.060 ± 0.005 (1.524± 0.127) DIA 0.180 ± 0.005 (4.572 ± 0.127) 0.500 (12.70) MIN 0.050 (1.27) BSC 10° NOM Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference LTC DWG # 05-08-1410) 0.180 ± 0.005 (4.572 ± 0.127) 0.90 (2.286) NOM 0.050 UNCONTROLLED (1.270) LEAD DIMENSION MAX 5° NOM 0.016 ± 0.003 (0.406 ± 0.076) 0.015 ± 0.002 (0.381 ± 0.051) 0.098 +016/–0.04 (2.5 +0.4/–0.1) 2 PLCS Z3 (TO-92) 0401 0.060 ± 0.010 (1.524 ± 0.254) 0.140 ± 0.010 (3.556 ± 0.127) TO-92 TAPE AND REEL REFER TO TAPE AND REEL SECTION OF LTC DATA BOOK FOR ADDITIONAL INFORMATION 1034fe 7 LT1034-1.2/LT1034-2.5 RELATED PARTS PART NUMBER LT1004 LT1019 LT1236 DESCRIPTION Low Cost Precision Band-Gap Precision Series or Shunt Band-Gap Precision Series or Shunt Buried Zener COMMENTS Micropower, SO-8, Industrial Temperature Options Low Dropout, Multiple Output Options Low Noise, Low Power, Multiple Output Options 1034fe 8 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q LT/CPI 0102 1.5K REV E • PRINTED IN USA www.linear.com © LINEAR TECHNOLOGY CORPORATION 1995